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Quantum Foundations
Experimental fully contextual correlations
arXiv
Authors: Elias Amselem, Lars Eirik Danielsen, Antonio J. Lopez-Tarrida, Jose R. Portillo, Mohamed Bourennane, Adan Cabello
Year
2011
Paper ID
29712
Status
Preprint
Abstract Read
~2 min
Abstract Words
80
Citations
N/A
Abstract
Quantum correlations are contextual yet, in general, nothing prevents the existence of even more contextual correlations. We identify and test a noncontextuality inequality in which the quantum violation cannot be improved by any hypothetical postquantum theory, and use it to experimentally obtain correlations in which the fraction of noncontextual correlations is less than 0.06. Our correlations are experimentally generated from the results of sequential compatible tests on a four-state quantum system encoded in the polarization and path of a single photon.
Why This Paper Matters
- This paper contributes to the Quantum Foundations research area in the Quantum Articles archive.
- It adds a 2011 reference point for readers tracking recent quantum research.
- Quantum correlations are contextual yet, in general, nothing prevents the existence of even more contextual correlations.
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